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ATTINY3224-SSU

MCHPATTINY3224-SSU

Microchip Technology
AVR tinyAVR® 2 Microcontroller IC 8-Bit 20MHz 32KB (32K x 8) FLASH 14-SOIC
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Overview

The ATTINY3224-SSU is a high-performance, low-power 8-bit microcontroller from Microchip's tinyAVR 2 series, featuring 32KB of Flash and 3K of RAM in a compact 14-SOIC package. It operates at speeds up to 20MHz and integrates essential peripherals like a 12-bit ADC, hardware multiplier, and various serial communication interfaces (UART, SPI, I2C).

Why Choose This Part

This MCU offers a significant memory density of 32KB Flash in a small 14-pin footprint, making it ideal for code-heavy applications where PCB space is limited. Its Unified Program and Debug Interface (UPDI) simplifies development by requiring only a single pin for programming and debugging.

Applications

Industrial Sensor Nodes
The integrated 12-bit ADC and hardware multiplier allow for local signal processing in space-constrained industrial monitoring applications.
Consumer Battery-Powered Devices
Utilizes a 32.768 kHz ultra-low power internal oscillator and flexible sleep modes to extend battery life in portable electronics.
Smart Home Actuators
Ideal for controlling small motors or lighting systems using the 16-bit Timer/Counter Type A with three dedicated PWM channels.
Interface Bridging
Acts as a protocol converter between UART, I2C, and SPI in systems requiring a small, low-pin-count communication hub.

Key Specifications

Speed 20MHz
RAM Size 3K x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Connectivity I2C, IrDA, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 12
Core Processor AVR
Package / Case 14-SOIC (0.154", 3.90mm Width)
Data Converters A/D 9x12b
Oscillator Type Internal
Program Memory Size 32KB (32K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 14-SOIC
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

Developers can use Microchip Studio or MPLAB X IDE with the XC8 compiler for development. Hardware evaluation can be performed using the ATtiny3224 Curiosity Nano evaluation kit, and programming is supported through the PICkit 4 or MPLAB Snap via the UPDI interface.

Also Consider

ATTINY1624-SSU MCHPMicrochip Technology - A pin-compatible alternative with 16KB Flash for cost-optimization if 32KB is not required.